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A 900 kg car enters an unbanked curve with a radius oof 75.0 m. The coefficient of static friction between the tires and roadbed iis .20. what is the maximum speed with which the car can safely negotiate
Your weight is due to the gravitational attraction of the Earth. The Moon, though, also exerts a gravitational force on you, and when it is overhead, Calculate the effect of the Moon on your weight
A 4.0 kg ball is traveling at 3.0 m/s and strkes a wall. The 4.0 kg ball bounces off the wall with a velocity of 4.0 m/s. determine the average force on the ball
An engine transfers 2.5 X 103 J of energy from a hot reservoir during a cycle and has an efficiency of 0.3. How much heat is transferred as exhaust to a cold reservoir
Object at rest, height in 180 feet Consider the following free fall classical motion and answer these questions based on the information. What is the classification of this motion and why
A mountain climber stands at the top of a 52.8m cliff hanging over a calm pool of wat. Find the velocity of the first stone at the instant both stones hit the water
To determine the location of her center of mass, a physics student lies on the lightweight plank supported by two scales 2.50 apart, as indicated . If left scale reads 300 , and right scale reads 122 .
An air conditioner is used to keep the interior of a house at a temperature of 25C while the outside temperature is 34C, what is the mechanical power required to keep the house cool?
Postively charged aluminum ion AL3+ has a mass of 4.50^-26? kg. After being accelerated through a potential difference of 650 V, Calculate the radius of the path of the ion in the field
A cylindrical capacitor consists of a cylinder (of length L and radius a) with a total charge Q nested inside a thin conducting cylindrical shell (of length L and radius b) with total charge -Q
An object moves at a constant velocity of 11 m/s to the southwest for an inverval of 20 s. Halfway through this interval, what is the magnitude of its instantaneous velocity
q1. a swimmer tries to swim straight across a river. he swims at a speed of 0.600 ms relative to the water. the river
The nucleus of the hydrogen atom has a radius of about 1.1x10^-15 The electron is at a distance of about 5.29 Ã- 10-11 m from the nucleus. compute the volume of the atom
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